HQProp is releasing some very interesting props lately, not least of which is this 4" t-mount bi-blade variant. Ultra light efficiency cruising and "micro long range" applications come to mind.

Need this with a 5mm shaft?

Check out all our 4" Props, and all our HQProp products!

Specifications

• Propeller Diameter: 4"
• Pitch: 2.5"                 
• Blades: 2
• Material: Poly Carbonate        
• Weight: 1.45g
• Hub Diameter: 9.8mm           
• Hub Thickness: 5mm        
• Shaft: 1.9/1.4/1.9mm 

Includes

• 4x HQ Prop Durable T4x2.5 Bi-Blade 4" Prop